To change the icon that represents an individual file or folder, perform the following steps:
Select the file or folder that you want to change.
Choose File -> Properties. A properties dialog is displayed.
On the Basic tabbed section, click on the Select Custom Icon button. A Select an icon dialog is displayed.
Use the Select an icon dialog to choose the icon to represent the file or folder.
Click Close to close the properties dialog.
To change the icon that represents a file type, use the File Types and Programs
preference tool. To open the File Types and Programs
preference tool, choose Applications -> Desktop Preferences -> Advanced -> File Types
and Programs.
To restore an icon from a custom icon to the default icon specified
in the File Types and Programs
preference tool,
right-click on the icon then choose Remove Custom Icon.
Alternatively, click on the Remove Custom Icon button
on the Properties dialog.